Impact-resistant valve body device

Abstract

The utility model belongs to the field of valve body devices, and particularly relates to an impact-resistant valve body device which comprises a device main body, a buffer structure is arranged on the surface of the device main body, the buffer structure comprises a buffer pipe, and the surface of the buffer pipe is fixedly connected with the side face of the device main body through a bolt. According to the impact-resistant valve body device, when a pipeline is initially communicated, liquid in the pipeline impacts the device body through the arranged flow dividing blades, the liquid drives the impeller to rotate, and when the speed of the liquid in the pipeline reaches a high speed, the impeller drives the mounting box to rotate, so that the rack extends out of the mounting box under the action of centrifugal force; and thus, the rack pushes the gear to rotate, the gear drives the worm to rotate, the worm drives the worm gear to rotate, the angle of the flow dividing hinge is changed according to the flow speed of the liquid, energy absorption and flow dividing are conducted on high-speed liquid in the device body, and the device body can receive impact of the liquid more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of valve body devices, and particularly relates to an impact-resistant valve body device. Background Technique

[0002] A ball valve is a valve widely used in fluid systems. Its main functions are to control the on-off, regulation, and diversion of fluids. The ball valve is not restricted by the installation direction, the flow direction of the medium can be arbitrary, the fluid resistance is small, and the full-bore ball valve basically has no flow resistance. It is tight and reliable, has two sealing surfaces, good sealing performance, can achieve complete sealing, is suitable for frequent operation, and has quick and light opening and closing. It is convenient to operate. It only needs to rotate 90° from fully open to fully closed, which is convenient for remote control and maintenance. The ball valve has a simple structure, and the sealing ring is generally movable, making disassembly and replacement relatively convenient. The sealing performance is good. When fully open or fully closed, the sealing surfaces of the ball and the valve seat are isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface.

[0003] Currently, in the prior art, when the pipeline is initially opened, the fluid suddenly enters the pipeline system, which will cause a certain impact on the valve body. This impact mainly comes from the sudden change in fluid velocity and the instability of the flow pattern, as well as the impact of particles or impurities that may exist in the fluid on the valve body. If the liquid is not shunted and decelerated, it is easy to damage the internal seal of the valve body. In view of this, we propose an impact-resistant valve body device. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an impact-resistant valve body device that can solve the problems raised in the above technical background.

[0005] To achieve the above purpose, an impact-resistant valve body device proposed by the utility model includes a device main body, and a buffer structure is arranged on the surface of the device main body. The buffer structure includes:

[0006] A buffer pipe, the surface of the buffer pipe is fixedly connected to the side surface of the device main body through bolts. A bracket is fixedly connected to the inner wall of the buffer pipe. A connecting shaft is rotatably connected to the inner wall of the bracket. An impeller is fixedly connected to the surface of the connecting shaft.

[0007] Preferably, an installation box is fixedly connected to the end face of the connecting shaft. The bottom surface of a rack is fixedly connected to the inner wall of the installation box through a spring. The surface of the rack is slidably connected to the inner wall of the installation box.

[0008] Preferably, the surface of the rack meshes with the surface of a gear. The inner wall of the gear is fixedly connected to the surface of a worm. Both ends of the worm are rotatably connected to the inner wall of the installation box.

[0009] Preferably, the surface of the worm is engaged with the surface of the worm wheel, and the inner wall of the worm wheel is fixedly connected to the surface of the flow dividing blade.

[0010] Preferably, the surface of the flow dividing blade is rotatably connected to the inner wall of the mounting box.

[0011] Preferably, the device body includes a ball valve housing, an inner sphere is rotatably connected to the inner wall of the ball valve housing, and the upper surface of the inner sphere is fixedly connected to the bottom surface of the handle.

[0012] Beneficial effects

[0013] The utility model provides an impact-resistant valve body device, which has the following beneficial effects:

[0014] (1) For the impact-resistant valve body device, through the arranged flow dividing blade, when the pipeline is initially passed, the liquid inside the pipeline impacts the device body, and the liquid drives the impeller to rotate. When the speed of the liquid inside the pipeline reaches a relatively high speed, the impeller drives the mounting box to rotate, so that the rack extends out of the mounting box under the action of centrifugal force, thereby enabling the rack to push the gear to rotate, enabling the gear to drive the worm to rotate, and thus enabling the worm to drive the worm wheel to rotate, so as to change the angle of the flow dividing blade according to the liquid flow rate, absorb energy and divide the high-speed liquid inside the device body, so that the device body can receive the impact of the liquid more smoothly.

[0015] (2) For the impact-resistant valve body device, through the arranged worm wheel, the meshing relationship between the worm and the worm wheel enables the worm to easily rotate the worm wheel, but the worm wheel cannot rotate the worm. This characteristic makes the worm and worm wheel mechanism have self-locking property, and can achieve reverse self-locking, that is, only the worm can drive the worm wheel, and the worm wheel cannot drive the worm, so that only when the total flow rate of the liquid decreases, the angle of the flow dividing blade will change, and the flow dividing blade itself will not be squeezed by the high-speed liquid to change the angle. Description of the drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the overall structure of the present utility model;

[0019] Figure 3Schematic diagram of a partial structure of the buffer structure of the present utility model;

[0020] Figure 4 Schematic sectional view of a partial structure of the buffer structure of the present utility model;

[0021] Figure 5 Schematic sectional view of the buffer structure of the present utility model.

[0022] Explanation of reference numerals in the drawings: 1. Device main body; 2. Buffer structure; 101. Ball valve housing; 102. Inner sphere; 103. Handle; 201. Buffer tube; 202. Bracket; 203. Connecting shaft; 204. Impeller; 205. Rack; 206. Gear; 207. Worm; 208. Worm gear; 209. Diverting vane; 210. Installation box.

[0023] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , the present utility model provides an impact-resistant valve body device, including a device main body 1, the device main body 1 includes a ball valve housing 101, the inner wall of the ball valve housing 101 is rotatably connected to an inner sphere 102, and the upper surface of the inner sphere 102 is fixedly connected to the bottom surface of a handle 103.

[0026] In the example process of the present utility model, a buffer structure 2 is provided on the surface of the device main body 1. The buffer structure 2 includes: a buffer tube 201. The surface of the buffer tube 201 is fixedly connected to the side surface of the device main body 1 through bolts. An inner wall of the buffer tube 201 is fixedly connected to a bracket 202. A connecting shaft 203 is rotatably connected to an inner wall of the bracket 202. An impeller 204 is fixedly connected to a surface of the connecting shaft 203. An end face of the connecting shaft 203 is fixedly connected to a mounting box 210. A bottom surface of a rack 205 is fixedly connected to an inner wall of the mounting box 210 through a spring. The surface of the rack 205 is slidably connected to the inner wall of the mounting box 210. The surface of the rack 205 meshes with the surface of a gear 206. An inner wall of the gear 206 is fixedly connected to a surface of a worm 207. Through the provided worm gear 208, the meshing relationship between the worm 207 and the worm gear 208 enables the worm 207 to easily rotate the worm gear 208, but the worm gear 208 cannot rotate the worm 207. This characteristic makes the worm gear 208 - worm 207 mechanism have self - locking property and can achieve reverse self - locking, that is, only the worm 207 can drive the worm gear 208, and the worm gear 208 cannot drive the worm 207. This makes it so that only when the total flow rate of the liquid decreases will the angle of the flow - dividing blade 209 change, and the flow - dividing blade 209 itself will not be deformed by the high - speed liquid extrusion. Both ends of the worm 207 are rotatably connected to the inner wall of the mounting box 210. The surface of the worm 207 meshes with the surface of the worm gear 208. An inner wall of the worm gear 208 is fixedly connected to the surface of the flow - dividing blade 209. Through the provided flow - dividing blade 209, when the pipeline is initially connected, the liquid inside the pipeline impacts the device main body 1, and the liquid drives the impeller 204 to rotate. When the speed of the liquid inside the pipeline reaches a relatively high speed, the impeller 204 drives the mounting box 210 to rotate, causing the rack 205 to extend out of the mounting box 210 under the action of centrifugal force. Thereby, the rack 205 pushes the gear 206 to rotate, causing the gear 206 to drive the worm 207 to rotate, and then the worm 207 drives the worm gear 208 to rotate, thereby changing the angle of the flow - dividing blade 209 according to the liquid flow rate, absorbing energy and dividing the high - speed liquid inside the device main body 1, so that the device main body 1 can receive the impact of the liquid more smoothly. The surface of the flow - dividing blade 209 is rotatably connected to the inner wall of the mounting box 210.

[0027] In the present utility model, during use, when the pipeline is initially connected, the liquid inside the pipeline impacts the device main body 1, and the liquid drives the impeller 204 to rotate. When the speed of the liquid inside the pipeline reaches a relatively high speed, the impeller 204 drives the mounting box 210 to rotate, causing the rack 205 to extend out of the mounting box 210 under the action of centrifugal force. Thereby, the rack 205 pushes the gear 206 to rotate, causing the gear 206 to drive the worm 207 to rotate, and then the worm 207 drives the worm gear 208 to rotate, thereby changing the angle of the flow - dividing blade 209 according to the liquid flow rate.

[0028] The above are only the preferred embodiments of the present utility model, and do not thereby limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields shall be included within the patent protection scope of the present utility model.

Claims

1. An impact-resistant valve body device, comprising a device body (1), characterized in that: A buffer structure (2) is provided on the surface of the device body (1), and the buffer structure (2) comprises: A buffer tube (201), the surface of the buffer tube (201) is fixedly connected to the side of the device body (1) by bolts, the inner wall of the buffer tube (201) is fixedly connected to a bracket (202), the inner wall of the bracket (202) is rotatably connected to a connecting shaft (203), the surface of the connecting shaft (203) is fixedly connected to an impeller (204), the end surface of the connecting shaft (203) is fixedly connected to a mounting box (210), the inner wall of the mounting box (210) and the bottom surface of the rack (205) are connected by a screw thread. The rack (205) is connected in a fixed manner by a spring, the surface of the rack (205) is slidably connected to the inner wall of the installation box (210), the surface of the rack (205) is meshed with the surface of the gear (206), the inner wall of the gear (206) is fixedly connected to the surface of the worm (207), the two ends of the worm (207) are rotatably connected to the inner wall of the installation box (210), the surface of the worm (207) is meshed with the surface of the worm wheel (208), and the inner wall of the worm wheel (208) is fixedly connected to the surface of the diverter leaf (209).

2. The impact-resistant valve body device according to claim 1, characterized in that: The surface of the diverter leaf (209) is rotatably connected to the inner wall of the installation box (210).

3. The impact-resistant valve body device according to claim 1, characterized in that: The device body (1) comprises a ball valve housing (101), the inner wall of the ball valve housing (101) is rotatably connected to an inner sphere (102), and the upper surface of the inner sphere (102) is fixedly connected to the bottom surface of a handle (103).

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